biostudies-literatureDing JThe Shandong Agricultural Seed Improvement ProjectGuangdong Provincial Key Research and Development Program96https://www.ebi.ac.uk/biostudies/studies/S-EPMC9361671biostudies-literatureUnknown13(1)<h4>Background</h4>Egg production is economically important in the meat-type chicken industry. To better understand the molecular genetic mechanism of egg production in meat-type chicken, genetic parameter estimation, genome-wide association analyses combined with meta-analyses, Bayesian analyses, and selective sweep analyses were performed to screen single nucleotide polymorphisms (SNPs) and other genetic loci that were significantly associated with egg number traits in 11,279 chickens from seven material lines.<h4>Results</h4>Yellow-feathered meat-type chickens laid 115 eggs at 43 weeks of age and white-feathered chickens laid 143 eggs at 60 weeks of age, with heritability ranging from 0.034-0.258. Based on meta-analyses and selective sweep analyses, one region (10.81-13.05 Mb) on chromoJournal of animal science and biotechnologyA significant quantitative trait locus on chromosome Z and its impact on egg production traits in seven maternal lines of meat-type chicken.PMC93616712020B020220022020LZGC013Zhang GWen JYing FZhang JZheng MZhao GLi QLiu RDing JfalseA significant quantitative trait locus on chromosome Z and its impact on egg production traits in seven maternal lines of meat-type chicken.<h4>Background</h4>Egg production is economically important in the meat-type chicken industry. To better understand the molecular genetic mechanism of egg production in meat-type chicken, genetic parameter estimation, genome-wide association analyses combined with meta-analyses, Bayesian analyses, and selective sweep analyses were performed to screen single nucleotide polymorphisms (SNPs) and other genetic loci that were significantly associated with egg number traits in 11,279 chickens from seven material lines.<h4>Results</h4>Yellow-feathered meat-type chickens laid 115 eggs at 43 weeks of age and white-feathered chickens laid 143 eggs at 60 weeks of age, with heritability ranging from 0.034-0.258. Based on meta-analyses and selective sweep analyses, one region (10.81-13.05 Mb) on chromo2022-01-01T00:00:00Z2022 Aug2025-04-18T15:48:46.006Z2025-02-19T01:55:38.238ZS-EPMC93616713594169710.1186/s40104-022-00744-w